CN102857145A - Sandstorm preventing and dust eliminating single-axis photovoltaic tracking power generation system structure - Google Patents

Sandstorm preventing and dust eliminating single-axis photovoltaic tracking power generation system structure Download PDF

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Publication number
CN102857145A
CN102857145A CN2012104066634A CN201210406663A CN102857145A CN 102857145 A CN102857145 A CN 102857145A CN 2012104066634 A CN2012104066634 A CN 2012104066634A CN 201210406663 A CN201210406663 A CN 201210406663A CN 102857145 A CN102857145 A CN 102857145A
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pressure sensor
photovoltaic module
photovoltaic
rotating shaft
module
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吴秋轩
谢颖娇
章坚民
刘士荣
林伟杰
王越胜
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Hangzhou Dianzi University
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Hangzhou Dianzi University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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Abstract

本发明公开了一种带防风沙、消尘埃的单轴光伏跟踪发电系统结构。本发明第一固定支架、第二固定支架分别与转动轴的两端相连接，光伏组件的背面固定在转动轴上，在电机带动下，光伏组件可随着转动轴进行0°～360°双向旋转；第二固定支架上设置有电机、控制模块、第一压力传感器和第二压力传感器，且第一压力传感器和第二压力传感器与转动轴的角度分别为a°和（180-a）°；气象观测仪设置在第一固定支架的一侧，监测风向、风速、雨量、光照强度信号，并将监测到的信号传输至控制模块。本发明提高组件表面清洁度，减少热斑效应，保持组件表面的光线入射率，提高光电转化效率，同时能有效地清洗光伏组件表面的灰尘，降低了人工成本。

Figure 201210406663

The invention discloses a structure of a single-axis photovoltaic tracking power generation system with wind and sand protection and dust elimination. In the present invention, the first fixing bracket and the second fixing bracket are respectively connected to the two ends of the rotating shaft, and the back of the photovoltaic module is fixed on the rotating shaft. Driven by the motor, the photovoltaic module can move 0° to 360° bidirectionally along with the rotating shaft. Rotation; a motor, a control module, a first pressure sensor and a second pressure sensor are arranged on the second fixed bracket, and the angles between the first pressure sensor and the second pressure sensor and the rotation axis are a° and (180-a)° respectively The meteorological observer is set on one side of the first fixed bracket, monitors wind direction, wind speed, rainfall, and light intensity signals, and transmits the monitored signals to the control module. The invention improves the surface cleanliness of the module, reduces the hot spot effect, maintains the incident light rate on the surface of the module, improves the photoelectric conversion efficiency, and can effectively clean the dust on the surface of the photovoltaic module, thereby reducing labor costs.

Figure 201210406663

Description

The single shaft photovoltaic tracking power generation system structure of a kind of sand-proof, dust elimination dust
Technical field
The present invention relates to a kind of single shaft photovoltaic tracking power generation system structure with sand-proof, dust elimination dust.
Background technology
Photovoltaic module is installed in the open air usually, receives sunlight and produces electric energy.In use because dust is easily coverd with on the photovoltaic module surface, produce hot spot effect, directly can reduce photoelectric conversion efficiency, thereby affect the operational efficiency of whole system, therefore need to keep the cleannes on photovoltaic module surface.And for the photovoltaic module that is installed in the strong wind sand ground districts such as desert, the photovoltaic module surface more easily accumulates dust storm, the grains of sand also can damage the photovoltaic module surface, can have a strong impact on photoelectric conversion efficiency, therefore will farthest reduce dust storm to the photovoltaic module unfavorable impression that produces and the cleannes that improve the photovoltaic module surface.
Present stage, the cleaning mode of large-sized photovoltaic assembly mainly was that artificial the scouring is main, not only operating efficiency is on the low side, and increased operation expense, and some directly utilizes water to clean, efficient is not high yet, and for the photovoltaic system that originally can not need water, increased the problem that seeks sources of water and store the water source.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, the single shaft photovoltaic tracking power generation system structure of a kind of sand-proof, dust elimination dust is provided.
The present invention includes photovoltaic module, photovoltaic module bracing frame, motor, meteorological to survey instrument, control module, the first pressure sensor, the second pressure sensor.
The photovoltaic module bracing frame comprises the first fixed support, the second fixed support and rotation axis; The first fixed support, the second fixed support are connected with the two ends of rotation axis respectively, and the back side of photovoltaic module is fixed on the rotation axis, and rotation axis is connected with motor, and under driven by motor, photovoltaic module can carry out 0 °～360 ° bidirectional rotations along with rotation axis; Be provided with motor, control module, the first pressure sensor and the second pressure sensor on the second fixed support, and the angle of the first pressure sensor and the second pressure sensor and rotation axis is respectively a ° and (180-a) °; Meteorological to survey instrument is arranged on first a support bracket fastened side, monitors wind direction, wind speed, rainfall, intensity of illumination signal, and the signal that monitors is transferred to control module.
The course of work of the present invention is as follows:
Meteorological to survey instrument comprises wind transducer, air velocity transducer, rain sensor, optical sensor; Monitoring wind direction, wind speed, rainfall, intensity of illumination signal, and the signal that monitors transferred to control module, if the first wind speed threshold value, the second wind speed threshold value, rainfall threshold value, intensity of illumination threshold value, pressure sensor threshold value, wherein the first wind speed threshold value is greater than the second wind speed threshold value.
The illumination intensity value that detects when optical sensor is higher than the intensity of illumination threshold value, when the air speed value that the while air velocity transducer detects is higher than the first wind speed threshold value, control module drive motors, the glass surface of rotating light photovoltaic assembly 1 are avoided the surface work of grains of sand damage photovoltaic module towards ground;
The illumination intensity value that detects when optical sensor is higher than the intensity of illumination threshold value, when simultaneously the air speed value that detects of air velocity transducer is between the first wind speed threshold value and the second wind speed threshold value, the glass surface of control module drive motors rotating light photovoltaic assembly dorsad dust storm blows direction, avoid grains of sand damage photovoltaic module surface, but photovoltaic module still can carry out opto-electronic conversion simultaneously, and just efficient is front more on the low side than rotation;
The illumination intensity value that detects when the intensity of illumination transducer is higher than the intensity of illumination threshold value, and when the air speed value that the while air velocity transducer detects was lower than the second wind speed threshold value, photovoltaic module did not need rotation.
When the illumination intensity value that detects when the intensity of illumination transducer is lower than the intensity of illumination threshold value, photovoltaic module electricity conversion under low-light (level) is crossed low or is stopped photoelectric conversion, at this moment, control module drive motors rotating light photovoltaic assembly glass surface is towards ground, and form an inclination angle with ground, dust storm accumulation when avoiding not using photovoltaic module utilizes natural wind to blow off the photovoltaic module surface simultaneously.
The rainfall value that detects when rain sensor is higher than the rainfall threshold value, illustrate that enough water sources clean photovoltaic module, at this moment, if the pressure signal that the first pressure sensor detects is higher than the pressure sensor threshold value, when perhaps the pressure signal that detects of the second pressure sensor is higher than the pressure sensor threshold value, the pressure signal that compares the first pressure sensor and the second pressure sensor, the pressure sensor that the selection pressure signal is higher, control module drive motors work, the rotating light photovoltaic assembly is so that the installation direction of the higher pressure sensor of the glass surface of photovoltaic module and pressure is identical.When the rainfall value that detects when rain sensor is lower than the rainfall threshold value, illustrate that rainfall is inadequate, be not enough to clean photovoltaic module, at this moment, the work of control module drive motors, rotating light photovoltaic assembly glass surface avoids the inadequate dust on photovoltaic module surface that causes on the contrary of rainwater owing to rainwater is bonded at the photovoltaic component glass surface towards ground.
Beneficial effect of the present invention is as follows:
The present invention can improve the assembly surface cleannes, reduces hot spot effect, keeps the light impingement rate of assembly surface, improve electricity conversion, the dust on while energy effective cleaning photovoltaic module surface, the frequency of minimizing manual cleaning photovoltaic module has reduced cost of labor; Take photovoltaic module is carried out the mode that dust storm protects in advance, natural rainwater cleans, can reduce the number of times to the artificial cleaning of photovoltaic module, greatly reduced maintenance cost, improved simultaneously serviceability and the life-span of assembly.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure, photovoltaic module 1, motor 2, meteorological to survey instrument 3, control module 4, the first pressure sensor 5, the second pressure sensor 6, the first fixed support 7, the second fixed support 8, rotation axis 9.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of single shaft photovoltaic tracking power generation system structure with sand-proof, dust elimination dust comprises photovoltaic module 1, motor 2, meteorological to survey instrument 3, control module 4, the first pressure sensor 5, the second pressure sensor 6, the first fixed support 7, the second fixed support 8, rotation axis 9.
The first fixed support 7, the second fixed support 8 are connected with the two ends of rotation axis 9 respectively, the back side of photovoltaic module 1 is fixed on the rotation axis 9, rotation axis 9 is connected with motor 2, and under motor 2 drove, photovoltaic module 1 can carry out 0 °～360 ° bidirectional rotations along with rotation axis 9; Be provided with motor 2, control module 4, the first pressure sensor 5 and the second pressure sensor 6 on the second fixed support 8, and the angle of the first pressure sensor 5 and the second pressure sensor 6 and rotation axis is respectively a ° and (180-a) °; Meteorological to survey instrument 3 is arranged on a side of the first fixed support 7, comprises wind transducer, air velocity transducer, rain sensor, optical sensor; Meteorological to survey instrument 3 is monitored wind directions, wind speed, rainfall, intensity of illumination signal, and the signal that monitors is transferred to control module 4;
The first fixed support 7, the second fixed support 8 and the rotation axis 9 common photovoltaic module bracing frames that form;
The course of work of the present invention is as follows:
Meteorological to survey instrument monitoring wind direction, wind speed, rainfall, intensity of illumination signal, and the signal that monitors transferred to control module 4, if the first wind speed threshold value, the second wind speed threshold value, rainfall threshold value, intensity of illumination threshold value, pressure sensor threshold value, wherein the first wind speed threshold value is greater than the second wind speed threshold value.
The illumination intensity value that detects when optical sensor is higher than the intensity of illumination threshold value, when the air speed value that the while air velocity transducer detects is higher than the first wind speed threshold value, control module 4 drive motors 2, the glass surface of rotating light photovoltaic assembly 1 are avoided the 1 surface work of grains of sand damage photovoltaic module towards ground;
The illumination intensity value that detects when optical sensor is higher than the intensity of illumination threshold value, when simultaneously the air speed value that detects of air velocity transducer is between the first wind speed threshold value and the second wind speed threshold value, the glass surface of control module 4 drive motors 2 rotating light photovoltaic assemblies 1 dorsad dust storm blows direction, avoid grains of sand damage photovoltaic module surface, but photovoltaic module still can carry out opto-electronic conversion simultaneously, and just efficient is front more on the low side than rotation;
The illumination intensity value that detects when the intensity of illumination transducer is higher than the intensity of illumination threshold value, and when the air speed value that the while air velocity transducer detects was lower than the second wind speed threshold value, photovoltaic module 1 did not need rotation.
When the illumination intensity value that detects when the intensity of illumination transducer is lower than the intensity of illumination threshold value, photovoltaic module electricity conversion under low-light (level) is crossed low or is stopped photoelectric conversion, at this moment, control module 4 drive motors 2 rotating light photovoltaic assembly glass surfaces are towards ground, and form an inclination angle with ground, dust storm accumulation when avoiding not using photovoltaic module utilizes natural wind to blow off the photovoltaic module surface simultaneously.
The rainfall value that detects when rain sensor is higher than the rainfall threshold value, illustrate that enough water sources clean photovoltaic module, at this moment, if the pressure signal that the first pressure sensor detects is higher than the pressure sensor threshold value, when perhaps the pressure signal that detects of the second pressure sensor is higher than the pressure sensor threshold value, the pressure signal that compares the first pressure sensor and the second pressure sensor, the pressure sensor that the selection pressure signal is higher, control module drive motors work, the rotating light photovoltaic assembly is so that the installation direction of the higher pressure sensor of the glass surface of photovoltaic module and pressure is identical.When the rainfall value that detects when rain sensor is lower than the rainfall threshold value, illustrate that rainfall is inadequate, be not enough to clean photovoltaic module, at this moment, the work of control module drive motors, rotating light photovoltaic assembly glass surface avoids the inadequate dust on photovoltaic module surface that causes on the contrary of rainwater owing to rainwater is bonded at the photovoltaic component glass surface towards ground.

Claims (1)

1. 一种带防风沙、消尘埃的单轴光伏跟踪发电系统结构，包括光伏组件、光伏组件支撑架、电机、气象观测仪、控制模块、第一压力传感器、第二压力传感器；其特征在于： 1. A single-axis photovoltaic tracking power generation system structure with anti-wind and sand and dust elimination, including photovoltaic modules, photovoltaic module support frames, motors, weather observers, control modules, first pressure sensors, and second pressure sensors; it is characterized in that : 光伏组件支撑架包括第一固定支架、第二固定支架和转动轴；第一固定支架、第二固定支架分别与转动轴的两端相连接，光伏组件的背面固定在转动轴上，转动轴与电机相连接，在电机带动下，光伏组件可随着转动轴进行0°～360°双向旋转；第二固定支架上设置有电机、控制模块、第一压力传感器和第二压力传感器，且第一压力传感器和第二压力传感器与转动轴的角度分别为a°和（180-a）°；气象观测仪设置在第一固定支架的一侧，监测风向、风速、雨量、光照强度信号，并将监测到的信号传输至控制模块。 The supporting frame of the photovoltaic module includes a first fixing bracket, a second fixing bracket and a rotating shaft; the first fixing bracket and the second fixing bracket are respectively connected to both ends of the rotating shaft, the back of the photovoltaic module is fixed on the rotating shaft, and the rotating shaft is connected to the rotating shaft. The motors are connected, and driven by the motor, the photovoltaic module can rotate 0° to 360° bidirectionally with the rotating shaft; the second fixed bracket is equipped with a motor, a control module, a first pressure sensor and a second pressure sensor, and the first The angles between the pressure sensor and the second pressure sensor and the rotation axis are a° and (180-a)° respectively; the meteorological observer is set on one side of the first fixed bracket to monitor the wind direction, wind speed, rainfall, and light intensity signals, and The detected signal is transmitted to the control module.
CN2012104066634A 2012-10-23 2012-10-23 Sandstorm preventing and dust eliminating single-axis photovoltaic tracking power generation system structure Pending CN102857145A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103117683A (en) * 2013-03-14 2013-05-22 英利集团有限公司 Solar photovoltaic module system
CN104317312A (en) * 2014-11-04 2015-01-28 天津天合日亚光电科技有限公司 Solar panel wind-resisting protective structure
CN104601098A (en) * 2015-02-12 2015-05-06 李元雄 Intelligently-adjusted photovoltaic module mounting support
WO2016066012A1 (en) * 2014-10-31 2016-05-06 比亚迪股份有限公司 Solar battery support and square solar battery
CN107819434A (en) * 2017-11-30 2018-03-20 福建景能能源科技有限公司 A kind of device of solar generating and its control method
CN108279712A (en) * 2018-04-17 2018-07-13 北京理工大学珠海学院 Motor push rod type double-shaft sun tracking system
CN108809225A (en) * 2018-07-18 2018-11-13 郭心舟 A kind of photovoltaic bracket with anti-hail device
CN109495056A (en) * 2018-10-17 2019-03-19 合肥凌山新能源科技有限公司 A kind of angle adjustable integral type power generator based on solar energy and wind energy
CN110011607A (en) * 2019-04-23 2019-07-12 北京理工大学珠海学院 Push-down automatically tracks sunlight device and its application method
CN112925353A (en) * 2021-01-28 2021-06-08 阳光电源（上海）有限公司 Control method and device for tracking support, processor and photovoltaic tracking system
CN113820755A (en) * 2020-12-30 2021-12-21 宁夏中科嘉业新能源研究院（有限公司） Be used for clean monitoring early warning system of photovoltaic power plant
CN117111643A (en) * 2023-10-18 2023-11-24 深圳市建工集团股份有限公司 Control method and device for photovoltaic panel group

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1825633A (en) * 2006-03-16 2006-08-30 常熟市飞宇新能源科技有限公司 Sealing technique for solar photo voltaic battery plate
CN102043411A (en) * 2010-12-30 2011-05-04 中环光伏系统有限公司 Control method for leveling solar oblique single-axis tracker downwind
KR20120024137A (en) * 2010-09-06 2012-03-14 한국 전기안전공사 Apparatus for preventing damage of tracking type photovoltaic panel support
CN102566588A (en) * 2010-12-09 2012-07-11 西安中科麦特电子技术设备有限公司 Sun follow up device
CN202841017U (en) * 2012-10-23 2013-03-27 杭州电子科技大学 Wind-and-sand-proof and dust-elimination single-shaft photovoltaic tracking structure for power generation system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1825633A (en) * 2006-03-16 2006-08-30 常熟市飞宇新能源科技有限公司 Sealing technique for solar photo voltaic battery plate
KR20120024137A (en) * 2010-09-06 2012-03-14 한국 전기안전공사 Apparatus for preventing damage of tracking type photovoltaic panel support
CN102566588A (en) * 2010-12-09 2012-07-11 西安中科麦特电子技术设备有限公司 Sun follow up device
CN102043411A (en) * 2010-12-30 2011-05-04 中环光伏系统有限公司 Control method for leveling solar oblique single-axis tracker downwind
CN202841017U (en) * 2012-10-23 2013-03-27 杭州电子科技大学 Wind-and-sand-proof and dust-elimination single-shaft photovoltaic tracking structure for power generation system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
居发礼: "积灰对光伏发电工程的影响研究", 《中国优秀硕士论文全文数据库，工程科技II辑》 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103117683A (en) * 2013-03-14 2013-05-22 英利集团有限公司 Solar photovoltaic module system
WO2016066012A1 (en) * 2014-10-31 2016-05-06 比亚迪股份有限公司 Solar battery support and square solar battery
CN105634390A (en) * 2014-10-31 2016-06-01 比亚迪股份有限公司 Solar cell support and solar cell array
CN104317312A (en) * 2014-11-04 2015-01-28 天津天合日亚光电科技有限公司 Solar panel wind-resisting protective structure
CN104601098A (en) * 2015-02-12 2015-05-06 李元雄 Intelligently-adjusted photovoltaic module mounting support
CN107819434B (en) * 2017-11-30 2023-11-10 福建景能能源科技有限公司 A solar power generation device and its control method
CN107819434A (en) * 2017-11-30 2018-03-20 福建景能能源科技有限公司 A kind of device of solar generating and its control method
CN108279712A (en) * 2018-04-17 2018-07-13 北京理工大学珠海学院 Motor push rod type double-shaft sun tracking system
CN108279712B (en) * 2018-04-17 2024-02-27 北京理工大学珠海学院 Electric pushrod dual-axis sun tracking system
CN108809225A (en) * 2018-07-18 2018-11-13 郭心舟 A kind of photovoltaic bracket with anti-hail device
CN109495056A (en) * 2018-10-17 2019-03-19 合肥凌山新能源科技有限公司 A kind of angle adjustable integral type power generator based on solar energy and wind energy
CN110011607A (en) * 2019-04-23 2019-07-12 北京理工大学珠海学院 Push-down automatically tracks sunlight device and its application method
CN110011607B (en) * 2019-04-23 2024-07-26 北京理工大学珠海学院 Push rod type automatic sunlight tracking device and use method thereof
CN113820755A (en) * 2020-12-30 2021-12-21 宁夏中科嘉业新能源研究院（有限公司） Be used for clean monitoring early warning system of photovoltaic power plant
CN112925353A (en) * 2021-01-28 2021-06-08 阳光电源（上海）有限公司 Control method and device for tracking support, processor and photovoltaic tracking system
CN117111643A (en) * 2023-10-18 2023-11-24 深圳市建工集团股份有限公司 Control method and device for photovoltaic panel group

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Application publication date: 20130102